6 letter words:
offset12,
setoff12,
foetus9,
5 letter words:
stuff11,
teffs11,
toffs11,
tuffs11,
fetus8,
tofus8,
touse5,
4 letter words:
effs10,
offs10,
teff10,
toff10,
tuff10,
efts7,
fest7,
fets7,
feus7,
foes7,
fuse7,
soft7,
tofu7,
oust4,
outs4,
suet4,
toes4,
utes4,
3 letter words:
eff9,
off9,
efs6,
eft6,
fes6,
fet6,
feu6,
foe6,
fou6,
oft6,
oes3,
ose3,
out3,
set3,
sot3,
sou3,
sue3,
toe3,
use3,
ute3,
uts3,
2 letter words:
ef5,
fe5,
of5,
es2,
et2,
oe2,
os2,
so2,
to2,
us2,
ut2,